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Patents Grantslast 30 patents

Information Patent Grant
Multi-layer water sealing device and multi-layer water sealing method
- Patent number 10,392,788
- Issue date Aug 27, 2019
- Kangzhiwei Zhejiang Technology Co., Ltd.
- Xiangqian Chen
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
MULTI-LAYER WATER SEALING DEVICE AND MULTI-LAYER WATER SEALING METHOD
- Publication number 20170204593
- Publication date Jul 20, 2017
- Kangzhiwei Zhejiang Technology Co., Ltd.
- Xiangqian CHEN
- E03 - WATER SUPPLY SEWERAGE